Chatchawarn Tarrin, 28, had been married to Nednapha Nuankhul, 26, since January last year but became possessive and abusive months into the marriage.
Ms Nuankhul posted three innocent pictures on Facebook in December – sending her husband into a jealous fury.
The mother-of-one tried to flee but Chatchawarn allegedly poured fuel on her then set her alight at their home in Amphoe Chiang Kham, northern Thailand.
Ms Nuankhul suffered horrific burns across her entire body and face – needing three emergency operations and several more in the coming months.
But incredibly, Ms Nuankhul said she forgives her husband – who is awaiting sentencing – for the sake of their son who she doesn’t want to be affected by the alleged attack.
Ms Nuankhul, who has now been released from hospital, said: ‘It has scarred me on the outside and in my heart, too. But I have to forgive my husband because we have a child together.
‘When the fire was burning I felt like I knew that hell was real. It was the worst pain and terror anybody could ever imagine.
‘I’m like this now forever and I know that hell exists.
‘You can run away from anything but you cannot run away from karma. Nobody knew this would happen but some things we just cannot escape.
‘My husband will be full of sin and he will feel karma one day, too. Now my husband cannot run away from anything. He has been put in prison and he has a son that needs care and a father.’
Friend Sudarat Khunarup took pictures of Ms Nuankhul to raise money for her medical care for bandages and treatment for the wounds plus skin grafts.
She said: ‘Nednapha had oil poured on her by her husband. She survived it but she is in a lot of pain and needs a lot of medical help.
‘She has had surgery on her neck, mouth and chin two or three times already. Her fingers are also very badly damaged and she needs more surgery on her right arm, and she has many ligament problems now.
‘She cannot work and she her husband cannot support her because he is in prison. Now she needs help with necessities such as water, alcohol ointment for the wounds, cotton fabrics, dressings and other medical supplies.’
Chatchawarn is being held by police after admitting the attack. Officers at the Chiang Kham police station have not told Nednapha when he will be sentenced and for how long.
A spokesman said: ‘This was a conjugal issue and it is currently being investigated so we can give the correct sentence.’